Greenheck Fan 473501 Optional Remote Control Panel, and Wiring Schematics, Hand/Off/Auto Switch

Optional Remote Control Panel

Indicator Lights powered by the ER Unit

and Wiring Schematics

The remote panel is a series of junction boxes ganged together and includes a stainless steel faceplate. The remote panel is available with a number of different alarm lights and switches to control the unit. The remote panel ships loose and requires mounting and wiring in the field

The remote panel is available with the following options:

•Unit on/off switch •Unit on/off light

•7-day time clock •Hand/off/auto switch •Dirty filter light •Economizer light •Frost control light •Wheel rotation sensor light

	R
	C
	G
	Y1
	Y2
	W1
	6
	7
	12
	PS2
NC	C	NO
	PS3
NC	C	NO

Unit On/Off

Frost Control

Economizer

Rotation Sensor

Dirty Filter

7-Day Timer or On/Off Switch

7-Day Timer
R	Terminal Block
C	in Unit
S1 - Unit On/Off	Control Center
G

For 7-Day Timer, use blue and black wires. Red wires should be capped off.

Dirty Filter Indicator (power by others)

NC	C	NO	Dirty Filter
NC	C	NO

Hot

L1

Hand/Off/Auto Switch

Heating/Cooling Switches and Night Setback Switch/Timer

S1

Unit On/Off

R

C

G

R

Terminal Block

S6 Econ/First Stage Cooling

Y1

Terminal Block

	C	in unit
On
	G	Control Center
Off	BMS
Auto

S7

S4

Second Stage Cooling

Y2	in unit
	Control Center
W1
6
7
12

Hand/Off/Auto Switch allows the unit to “Off” - off

“On” - Manual Operation

“Auto” - Unit is controlled by BMS, RTU, etc. NOTE: RTU controllers are by others.

	Night Setback Timer
S5	Night Setback Switch

A

Model ERCH-HP Energy Recovery Unit 17